Aerial Lifts

An aerial lift is any vehicle-mounted device used
to elevate personnel, including:

Extendable boom platforms,

Aerial ladders,

Articulating (jointed) boom platforms,

Vertical towers, and

Any combination of the above.

Aerial lifts have replaced ladders and scaffolding
on many job sites due to their mobility and
flexibility. They may be made of metal, fiberglassreinforced
plastic, or other materials. They may
be powered or manually operated, and are
considered to be aerial lifts whether or not they
can rotate around a primarily vertical axis.

Many workers are injured or killed on aerial lifts
each year.

OSHA provides the following information to help
employers and workers recognize and avoid
safety hazards they may encounter when they use
aerial lifts.

Hazards Associated with Aerial Lifts

The following hazards, among others, can lead to
personal injury or death:

Fall from elevated level,

Objects falling from lifts,

Tip-overs,

Ejections from the lift platform,

Structural failures (collapses),

Electric shock (electrocutions),

Entanglement hazards,

Contact with objects, and

Contact with ceilings and other overhead
objects.

Training

Only trained and authorized persons are allowed
to operate an aerial lift. Training should include:

Demonstrations of the skills and knowledge
needed to operate an aerial lift before operating
it on the job;

When and how to perform inspections; and

Manufacturer's requirements.

Retraining

Workers should be retrained if any of the following
conditions occur:

An accident occurs during aerial lift use,

Workplace hazards involving an aerial lift are
discovered, or

A different type of aerial lift is used.

Employers are also required to retrain workers
who they observe operating an aerial lift
improperly.

What to Do Before Operating an
Aerial Lift

Pre-start Inspection

Prior to each work shift, conduct a pre-start
inspection to verify that the equipment and all
its components are in safe operating condition.
Follow the manufacturer's recommendations
and include a check of:

Vehicle components

Proper fluid levels (oil, hydraulic, fuel and
coolant);

Leaks of fluids;

Wheels and tires;

Battery and charger;

Lower-level controls;

Horn, gauges, lights and backup alarms;

Steering and brakes.

Lift components

Operating and emergency controls;

Personal protective devices;

Hydraulic, air, pneumatic, fuel and electrical
systems;

Fiberglass and other insulating components;

Missing or unreadable placards, warnings, or
operational, instructional and control markings;

Mechanical fasteners and locking pins;

Cable and wiring harnesses;

Outriggers, stabilizers and other structures;

Loose or missing parts;

Guardrail systems.

Do not operate any aerial lift if any of these
components are defective until it is repaired by a
qualified person. Remove defective aerial lifts
from service (tag out) until repairs are made.

Work Zone Inspections

Employers must assure that work zones are
inspected for hazards and take corrective actions
to eliminate such hazards before and during operation
of an aerial lift. Items to look for include:

Drop-offs, holes, or unstable surfaces such as
loose dirt;

Inadequate ceiling heights;

Slopes, ditches, or bumps;

Debris and floor obstructions;

Overhead electric power lines and communication
cables;

Other overhead obstructions;

Other hazardous locations and atmospheres;

High wind and other severe weather conditions,
such as ice; and

he presence of others in close proximity to the
work.

What to Do While Operating an Aerial Lift

Fall Protection:

Ensure that access gates or openings are closed.

Stand firmly on the floor of the bucket or lift
platform.

Do not climb on or lean over guardrails or
handrails.

Do not use planks, ladders, or other devices as a
working position.

Use a body harness or a restraining belt with a
lanyard attached to the boom or bucket.

Do not belt-off to adjacent structures or poles
while in the bucket.

Operation/Traveling/Loading:

Do not exceed the load-capacity limits. Take the
combined weight of the worker(s), tools and
materials into account when calculating the load.

Do not use the aerial lift as a crane.

Do not carry objects larger than the platform.

Do not drive with the lift platform raised (unless
the manufacturer’s instructions allow this).

Do not operate lower level controls unless
permission is obtained from the worker(s) in the
lift (except in emergencies).

Do not exceed vertical or horizontal reach limits.

Do not operate an aerial lift in high winds above
those recommended by the manufacturer.

Do not override hydraulic, mechanical, or
electrical safety devices.

Overhead Protection:

Be aware of overhead clearance and overhead
objects, including ceilings.

Do not position aerial lifts between overhead
hazards if possible.

Treat all overhead power lines and communication
cables as energized, and stay at least 10 feet
(3 meters) away.

Ensure that the power utility or power line
workers de-energize power lines in the vicinity
of the work.

Stability in theWork Zone:

Set outriggers on pads or on a level, solid
surface.

Set brakes when outriggers are used.

Use wheel chocks on sloped surfaces when it is
safe to do so.

Set up work zone warnings, such as cones and
signs, when necessary to warn others.

Insulated aerial lifts offer protection from electric
shock and electrocution by isolating you from
electrical ground. However, an insulated aerial lift
does not protect you if there is another path to
ground (for instance, if you touch another wire).
To maintain the effectiveness of the insulating
device, do not drill holes in the bucket.

Additional Information

OSHA has a variety of publications, standards,
technical assistance and compliance tools to help
you. OSHA also offers extensive assistance through
workplace consultations, grants, strategic
partnerships, state plans, training and education.
OSHA's Safety and Health ProgramManagement
Guidelines (54 Federal Register 3904-3916, January
26, 1989) detail elements critical to the development
of a successful safety and health program.

To file a complaint by phone, report an emergency,
or get OSHA advice, assistance, or products,
contact your nearest OSHA office or call us toll-free
at 1-800-321-OSHA (6742).

This is one in a series of informational fact sheets highlighting OSHA programs, policies or standards. It does not impose any new compliance requirements. For a comprehensive list of compliance requirements of OSHA standards or regulations, refer to Title 29 of the Code of Federal Regulations. This information will bemade available to sensory-impaired individuals upon request.The voice phone is (202) 693-1999; the teletypewriter (TTY) number is (877) 889-5627.

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